abbyisaprincess

one year ago

i give medals!
A boat of mass 450 kg drifts along a river at a speed of 10 m/s to the north. What impulse is required to decrease the speed of the boat to 6 m/s to the north?
A. 2700 kgm/s south
B. 1800 kgm/s north
C. 1800 kgm/s south
D. 2700 kgm/s north